aIn the triangle ABC, let CE be the median from C to the midpoint E of side AB (Figure 6). Let M on CE be the centroid and D the circumcenter of the triangle. 在三角ABC中,让铈是中点从C到中点E旁边AB (图6)。让M在铈是矩心和D三角的circumcenter。[translate] ...
Results concerning the following topics of elementary triangle geometry are exhibited: the re-entrant property (with the Flower of Life); the three-circle theorem; the orthocenter, the centroid, the circumcenter, and the Euler line of a triangle; the Miquel theorem; Clifford's chain theorem; a...